I'll just get right into it. Had an event to shoot. First problem I run into is the 580exII wasn't being triggered by the pocket wizzards. Wasted a lot of time trying to solve that one only to find that the sync on the 580 I rented was crap, and you had to fiddle with it to get is JUST RIGHT in order for it to work. Then 50 frames later the whole thing just goes bonkers and quits working. So I put in my old 580ex, not the II so no sync to do wireless flash which is a bummer. But hey at least I got something to use for a flash. Well that lasted 100 frames before it started taking it 45sec between recycles even though it was on a fully charged quantum turbo??? I make it through the night with lots of frustration only to get home and get an error on one of my 2 memory cards (the second and more important shots) "No more producing folder" what ever that means, and ALL the shots are gone! I utterly hate life right now!